Undecanal present in sweet orange, orange, lemon, lime and other citrus in the aroma components. Undecanal （LookChemical） is a colorless to light yellow oily liquid. Fat wax with rose-like floral air and the sweet orange, insoluble in water, soluble in ethanol, soluble in oils and alcohol, insoluble in glycerin and water. Undecanal easy to aggregate, in the air oxidation of undecylic acid. Sweet. By the undecanol oxidation, or undecylic acid catalytic reduction can be obtained Undecanal. 11-ene may also be obtained by hydrogenation of methyl dehydrogenation undecanol into aldehydes.
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